Immunisation: AEFI classification: practice question

A Pediatrics question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Pediatrics · Immunisation: AEFI classification

Sample item

After a vaccine session, six children develop fever and local abscess. Investigation shows the nurse used a single syringe contaminated by a non-sterile technique. How is this AEFI classified?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

C. Immunisation error-related reaction (programme error)

AEFI categories are vaccine product-related, vaccine quality defect-related, immunisation error-related (programme error), immunisation anxiety-related and coincidental. Abscess clusters from non-sterile technique are programme errors. Identifying the cause allows corrective training.

Option by option

  • A. Vaccine product-related reaction

    A product reaction is an inherent vaccine property.

  • B. Vaccine quality defect

    A quality defect arises in manufacturing.

  • C. Immunisation error-related reaction (programme error) (correct)

    Correct. Non-sterile injection is a programme error.

  • D. Coincidental event

    A coincidental event is unrelated to vaccination.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

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Questions about this Pediatrics question

What is the answer to this Pediatrics question?

The best answer is C, Immunisation error-related reaction (programme error). AEFI categories are vaccine product-related, vaccine quality defect-related, immunisation error-related (programme error), immunisation anxiety-related and coincidental.

Why is "Vaccine product-related reaction" not the answer?

A product reaction is an inherent vaccine property.

Why is "Vaccine quality defect" not the answer?

A quality defect arises in manufacturing.

Why is "Coincidental event" not the answer?

A coincidental event is unrelated to vaccination.

What concept does this question test?

It tests Immunisation: AEFI classification in Pediatrics. Abscess clusters from non-sterile technique are programme errors. Identifying the cause allows corrective training.

How hard is this question?

We tag it as a multi-step question: it asks you to combine more than one idea. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Immunisation: AEFI classification?

Memorise milestones and the vaccine schedule as tables and revise them often. Then use the flashcards and the other Pediatrics questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.